After closing a tab, the tabbing order doesn't flow correctly

[nashio]

How to reproduce:
open files
file1 > file2 > file3 > file4
close file2,
re-open file2,
file1 > file3 >file4 >file2
now the order tabbing from left to right jumps from 1 to 4, then back to 2 and 3
shouldn't it just follow the normal order from left to right?